Introduction and aim.– The pulmonary rehabilitation (PR) is a key element of the treatment of the chronic obstructive pulmonary disease (COPD). The maintained participation in the proposed programs of PR is a challenge for the teams involved in this disease. Listening to the music was demonstrated to be positive on different parameters related to a decrease in exercise tolerance [1–2]. The aim of this study was to evaluate the effect of listening to an ambient music on the perceived exertion rate during sessions of pulmonary rehabilitation for COPD patients. Materiel and method.– COPD patients participating routinely in our PR program performed randomly a classical session with or without ambient music (tempo 120 b/m). The Borg scale, the dyspnea and the cardio-respiratory parameters were compared between both sessions. Results.– Thirty-one paired sessions were compared. The characteristics (mean ± SD) of the COPD patients were as followed: age (y): 70.5 ± 8.4 – BMI (kg/m2): 22.7 ± 3.9 – FEV1 (% pred): 38.6 ± 12.5. Our results showed that listening to an ambient music does not modify the perceived exertion, the dyspnea or the cardio-respiratory parameters during a classical session of a PR program. Discussion and conclusion.–This preliminary study seems to highlight that the perceived exertion rate is not influenced by an ambient music.